<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="vue.js"></script>
</head>
<body>
    <div id="root">
        <div >
            <input v-model="inputValue"/>
            <button @click="handleSubmit">提交</button>
        </div>
        <ul>
<!--             <li v-for="(item , index) of list" :key="index">{{item}}</li>
 -->        
        <todo-item
            v-for="(item,index) of list"
            :key="index"
            :content="item"
            :index="index"
            @delete="handleDelete"
        ></todo-item>
</ul>
    </div>
    <script>
        /* 全局组件 */
         Vue.component('todo-item',{
             props:['content',"index"],
            template:'<li @click="handleClick">{{content}}</li>',
            methods:{
                handleClick:function(){
                    this.$emit('delete',this.index)
                }
            }

        }) 

        /* 局部组件 */
        /* var TodoItem={
            template:'<li>item</li>'
        } */

        new Vue({
            el:"#root",
            /* 局部组件 */
            /* components:{
                'todo-item':TodoItem
            }, */
            data:{
                inputValue:'',
                list:[]
            },
            methods:{
                handleSubmit:function(){
                    this.list.push(this.inputValue)
                    this.inputValue=''
                },
                handleDelete:function(index){
                    this.list.splice(index,1)
                }
            }
        })
    </script>
</body>
</html>

